JPS5760956A - Negative pressure type booster - Google Patents

Negative pressure type booster

Info

Publication number
JPS5760956A
JPS5760956A JP55136460A JP13646080A JPS5760956A JP S5760956 A JPS5760956 A JP S5760956A JP 55136460 A JP55136460 A JP 55136460A JP 13646080 A JP13646080 A JP 13646080A JP S5760956 A JPS5760956 A JP S5760956A
Authority
JP
Japan
Prior art keywords
input column
booster
negative pressure
piston
control valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP55136460A
Other languages
Japanese (ja)
Other versions
JPS628338B2 (en
Inventor
Masayuki Seki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissin Kogyo Co Ltd
Original Assignee
Nissin Kogyo Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nissin Kogyo Co Ltd filed Critical Nissin Kogyo Co Ltd
Priority to JP55136460A priority Critical patent/JPS5760956A/en
Priority to US06/304,937 priority patent/US4469008A/en
Priority to GB8129374A priority patent/GB2087015B/en
Publication of JPS5760956A publication Critical patent/JPS5760956A/en
Publication of JPS628338B2 publication Critical patent/JPS628338B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Transmission Of Braking Force In Braking Systems (AREA)
  • Braking Systems And Boosters (AREA)
  • Actuator (AREA)

Abstract

PURPOSE: To improve functional reliability of the captioned booster by modifying the structure around the input column, and preventing adverse effect on the seating condition between the valve seat and the poppet valve of built-in control valve mechanism due to shaking of the input column.
CONSTITUTION: The space within front and rear shells 1, 2 of the negative pressure type booster is divided into a permanently negative pressure chamber 6 and a variable pressure chamber 7 by means of a booster piston 4. An input column 22 which is connected to the above piston 4 is also connected t a control valve mechanism B. The booster power is provided through a power column 17 due to the pressure difference between chambers 6 generated at the time when the input column moves forward. Here, the top end 22a of the input column 22 is formed spherical so that it can slide and float along the inner wall of an insert hole 23 of the piston 4, and this top end 22a is slidingly attached to No.1 valve seat 29 of the control valve mechanism B. Thus, adverse effect to shaking input column 22 on the sealing condition of No.1 valve seat 29a and a poppet valve 31 is avoided.
COPYRIGHT: (C)1982,JPO&Japio
JP55136460A 1980-09-30 1980-09-30 Negative pressure type booster Granted JPS5760956A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP55136460A JPS5760956A (en) 1980-09-30 1980-09-30 Negative pressure type booster
US06/304,937 US4469008A (en) 1980-09-30 1981-09-23 Negative pressure type booster arrangement
GB8129374A GB2087015B (en) 1980-09-30 1981-09-29 Mechanically operating vacuum boosters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55136460A JPS5760956A (en) 1980-09-30 1980-09-30 Negative pressure type booster

Publications (2)

Publication Number Publication Date
JPS5760956A true JPS5760956A (en) 1982-04-13
JPS628338B2 JPS628338B2 (en) 1987-02-21

Family

ID=15175625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55136460A Granted JPS5760956A (en) 1980-09-30 1980-09-30 Negative pressure type booster

Country Status (1)

Country Link
JP (1) JPS5760956A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6240302U (en) * 1985-08-30 1987-03-10

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6240302U (en) * 1985-08-30 1987-03-10

Also Published As

Publication number Publication date
JPS628338B2 (en) 1987-02-21

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